Fastening device for roofing fabrics



@ct 7 f 1924.

L.. T. AYRAULT ET AL FASTENING DEVICE FOR ROOFING FABRICS Filed June 26. 1923 Patented Oct. 7, 1926i.

ir rs iae LAWRENCE T. AYRAULT ANDA JOHN AYRAULT, JR., F TONAWANDA, NEW' YORK.

FASTENING DEVICE FOR ROOFING- FABRICS.

Application filed June 26, 1923. Serial No. 647,846.

To all whom t may concern.'

Be it known that we, LAWRENCE T. AYRAULT and JOHN AYRAULT, Jr., citizens of the United States, residing at Tona- Wanda, in the county of Erie and State of NeivYork, have invented certain new and useful Improvements in Fastening Devices for Roofing Fabrics; and we do hereby declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to devices for securing roofing or siding fabrics, sheets,

shingle slabs or the like to roof boards or other fabric supports. It has for its several objects to prevent the siding or roofing fabric from buckling where expansion or contraction occurs, and, in the case of shingles,

to obviate curling usually incident to long exposure under atmospheric also, to effect the exclusion of moisture from beneath the respective layers of the siding or roofing fabric, and to prevent access of 5 moisture to the nails and to the perforatioiis in the fabric caused by the latter in securing the fabric to its support.

Our invention involves the following principal features of construction: First; an elongated transversely curved or cupped body member having burs on its convex surface, with or without projecting onoffset nail tabs, said body member being adapted uninterruptedly to clamp or hugthe surface upon which it is superposed and the burs thereof adapted to engage a superposed or overlapping surface, thereby excluding moisture and also counteracting the tendency of the fabric to buckle or to curl at i0 its edges. Second; a rib or ribs adjacent to the nail holes adapted to indent or be embedded in the overlying fabric, thereby eX- cluding moisture from the nails and from the perforations in the fabric caused by the nails which connect the fastening device to the fabric and its support. Third; elongated nail slotsin the nail tabs of the fastener adapted to permit eflicient placement of the j fastener and of the securing nails thereof,

' '50 4whereby cracks, lmots and other imperfecconditions;

tions in the support may be avoided in securing the fabric in position.

In the drawings accompanying and forming part of this speciication,-

Figure 1 is a plan view of a fastener einbodying our invention. y

Figure 2 is a plan view of portions of several courses of lfabric shingles illustrating the application of our fasteners thereto,

Figure 3 is a transverse sectional'view of a portion of the applied roofing shown in Fig. 2.

Figure 4 is a transverse sectional view of the fastener, taken on the line 1r-4. Fig. 1.

Figure 5 is a view showing the manner of applying our fastener in laying sheet fabric.

In the drawings illustrating a preferred embodiment of the invention, the scope whereof is pointed out in the claims. 1 inf dicates the elongated body member of our fabric fastening device. Its length may be proportioned to its preferred location or use, whether with sheet fabric, shingles or slabs. The body member 1 is transversely curved or cupped, asy at 2, so that its edge 3 may be forced down and caused uninterruptgdly to engage or indent the underlying surace.

Projecting laterally from the body ineinber 1 are a series of nail tabs 4 perforated for the passage of the nails by which the fastener is 'secured to the fabric support. For purposes of locating nails so as to avoid knots, cracks, etc., -these perforations are preferably elongated as indicated at 5.

. The body member 1 of the fastener is also provided in or on its convex surface adjacent to its edge 3 with a series of burs or projecting points 6 adapted to enter the under surface of the superposed fabric and be clinched by the blow of a hammer.

The body member 1 is preferably provided on its convex surface, back of and parallel to the line of the burs 6, with a continuous rib 7 adapted to embed itself in the under surface of the superposed fabric; and each nail tab 1 -is also ribbed, beingv preferably provided with a pair of ribs 8 arranged on opposite sides of its nail slot 5. lhese ribs preferably extend to and connect MNE with the longitudinal rib 7 of the .body member 1. lin applying the fabric to its support these several ribs?v and 8 become embedded in the under. surface of the fabric, thus excluding moisture from between the layers.

While also possessing the well known advantage gf stidening the material of which the fastener may be formed .and thus lessening thecost of manufacture by enabling a 10 lighter or thinner material to be used therefor, the thinness of the fastener thereby made I practically possible results in the avoidance of ridge formations or riiiles on the surface of the laid fabric.

Fabric fastening devices of the character hereinbefore set lforth may be utilized in applying siding or laying roofing as fol- Ows: lin laying shingles upon a roof or siding it is preferred to dispose them in courses in they usual manner of laying shingles as indicated at F, G, and l-l in Fig. 2. Before -layingthe course F a series of the fastening devices is placed and attached to the roof boards or other support in any suitable manner, but preferably by means of nails passing through the elongated slots 5, which latter permit of the positioning of the nails to secure a firm attachment. rllhe convex burred surface of the fastener is exposed. The shingles of the course F are next applied so that the burs 6 will penetrate the lower edges of the several shingles. The burs may be then clinched by a hammer blow, which also causes the edge 3 of member 1 to hug or indent the underlyin support or fabric, as the case may be, an likewise causes the ribs 7 and 8 to sink into or indent the fabric of the immediately overlying course F. Courses G, H, and each succeedm course, may be laid in like manner, a suita le lower portion of each course being left exposed as is ordinarily done in laying shingles. The nails which pass through the courses into the roof boards or other support are covered in turn and protected by the superimposedxcourses. l lin laying a fabric sheet or shingle strip, as indicated in Fig. 5 of the drawings, it is preferred to leave a marginal space of from three to six inches for lapping as shown at K. @n this, margin the fastening devices may be placed and secured with the burs thereof arranged to engage the superposed sheet of the fabric adjacent its edge.

Among the advantages of our invention arethe edective exclusion of moisture from..

the under side of the fabric sheets or shingles, thus eectually protecting the fastening nails and the perforations in the fabric lthrough which they pass; the locking or holding of the fabric against working loose around the burs, thus preventing wear and tear and buckling of the fabric; and the clamping action of the curved and ribbed body member which prevents curling and Leraren buckling. 'llhe elongated body and short` tabs facilitate the straightening of courses after laying, as well as in repair work; and the ribbed -body of light material results in the avoidance of wave or ripple formations in the laid shingles or shingle courses. llt is practical by use of our fastener, which prevents curling or buckling of the applied fabric, to lay large as well as small shingles of a light weight fabric, thus rendering unnecessary the use of heavier multiple layer fabric such as is now required. This results in a material saving in the manufacture and application of siding and roofing fabrics.

We claim u l. Fastening means for roofing and siding fabrics comprising a body member adapted to be interposed between overlapped layers of the said fabric, said body member being transversely arched and having burrs which project upwardly from its convex surface and provide means adapted for securing said body member to an overlying layer of the fabric, and means for securing said arched body member to an underlying fabric support.

2. Fastening means for roofing and siding fabrics, comprising a transversely curved body member provided on its convex surface with a longitudinally disposed rib, and having means for securing a fabric to said body member, and means for securing the fastener to a support.

3. A fastener for roofing and siding fabrics, comprising an elongated transversely curved body member provided with nail. tabs and having a longitudinally disposed rib on its convex surface.

4. A fastener for roofing and siding fabnrics having a body member provided with a series of spaced burs adjacent to one edge thererof and having a rib disposed back of said series of burs. i 5. A fastener for roofing and siding fabrics having. a body member provided with a nail tab projecting laterally therefrom and having a series of burrs, said body member having on its burred surface a rib extending behind said burrs.

6. A fastener for roofing and siding fabrics, comprising an elongated body member having perforated nail tabs, and ribs arranged with relationV to the perforations of the nail tabs so as to exclude moisture there from.

7. A fastener for roofing and siding fab rics, said fastener having an elongated transversely curved body member provided with a series of burs adjacent to one edge thereof, a rib on the convex face of said body member, said rib being back of theburs and being parallel thereto, and nail tabs having elongated nail slots.

8. Fastening means for roong and siding melone@ fabrics comprising en elongated body menibei' provided with e iongindinaiy extendiing iio and having means for attaching e 'fabric to said body member., and means for attaching said body meinbe'i to e suppone.

9. A fastening device for i'oofing and. siding fabrics, comprising an elongated tiensversey onye body member edepted'to 'be interposed between overlapped loyers o the seid fabric, seid body member@L having esso* eieted therewith upwardly progeeting meens adapted bo secure the overlying layer of the 'ebrio in position, and means for elteohing seid body memberto an unda-lying ebro support, said oui'ed to said support serving to engage and clamp en underlying le er of the ebi'io.

lfn testimony Whereo We e our signa,- tures.

LAWRENCE T. AYRAULT., JHN AYRAULT, Jin

curved body member when se- 315 

